Electro stimulator



FIG. 1 is a rear elevational view of an electro stimulator showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a perspective view of the front, top and right side thereof;

FIG. 4 is a perspective view of the rear, bottom and left side thereof;

FIG. 5 is a right side elevational view, the left side being a mirror imag thereof; and,

FIG. 6 is a top plan view thereof.

The specific colors shown are not being claimed. 

The ornamental design for an electro stimulator, as shown. 